25771234 has 4 divisors (see below), whose sum is σ = 38656854. Its totient is φ = 12885616.

The previous prime is 25771231. The next prime is 25771241. The reversal of 25771234 is 43217752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20025625 + 5745609 = 4475^2 + 2397^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25771196 and 25771205.

It is not an unprimeable number, because it can be changed into a prime (25771231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6442807 + ... + 6442810.

Almost surely, 2^25771234 is an apocalyptic number.

25771234 is a deficient number, since it is larger than the sum of its proper divisors (12885620).

25771234 is a wasteful number, since it uses less digits than its factorization.

25771234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885619.

The product of its digits is 11760, while the sum is 31.

The square root of 25771234 is about 5076.5375995850. The cubic root of 25771234 is about 295.3781762926.

Adding to 25771234 its reverse (43217752), we get a palindrome (68988986).

The spelling of 25771234 in words is "twenty-five million, seven hundred seventy-one thousand, two hundred thirty-four".